Quote Originally Posted by tommo View Post
Yep, and there's one drug available already called Modafinil. You can buy it on the net.

Oh and yeah I would choose ~20 years of lucid dreams over ~20 years of extra waking life for sure.
It's impossible that you get 20 extra years of lucid dreams, due to REM stages, but if you could lucid dream in every REM minute you had, you'd probably get around 7 extra years.